It can be used in the freezer, heated in a microwave oven ,boiled in the water and storage in fridge . Safe, Nontoxic, Good vacuum effect, High transparency, Tensile strength and durability, Easy to heat sealing, Sealing good, not easy ageing etc. Transparent, colorless, odorless, food-grade packaging bag, vacuum has good airtightness, plays a good role in preventing dust, prolonging the shelf life, keeping fresh, etc. Application: meat, food, vegetables, fruits, snacks, nuts, beans , candy etc . It can be cut by yourself according to your request , it's very convenient . Applicable for all kinds of vacuum sealers and strong sealing . Specification: Material : food grade membranes Color:White Width:12cm/15cm/17cm/20cm/22cm/25cm/28cm/30cm/32cm Length:500cm/Roll Package:1 Roll Vacuum Food Bag